Answer:
A. 9x^4 and 3x^5y
Step-by-step explanation:
there are two ways to solve this:
first way:
You can solve this my substituting numbers for x and y in this case i used 2 for x and 3 for y and see which one is equal to the original equations
the second way is the regular way
when you add or subtract numbers with variables and exponents you want to add the constants and add the exponents in this case 
is the same as 
= 
and you can do the same process for subtraction
= 
<h2>Answer:</h2>
13.391 ft
<h2>Explanations:</h2>
The schematic diagram of the given question is shown below;
The height of the tree is expressed as:
H = h +5
Determine the value of h using the SOH CAH TOA identity
Determine the height of the tree
Hence the height of the tree is 13.391ft
The commutative property pf addition is a+b=b+a
Answer:
There is no answer for 'x'
Step-by-step explanation:
x + 6 = 9+x subtract 'x' from both sides
6 = 9 this is NOT true ....there is no answer
